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Phosphorous acid

Phosphorous acid structure

CAS No:
10294-56-1
Formula:
H3O3P
Chemical Name:
Phosphorous acid
Synonyms:
Phosphorous acid;858711-57-6
Categories:
Inorganic Chemistry > Inorganic Salts

Description

A white crystalline solid. It is a monobasic acid forming the anion H2PO2- in water. The sodium salt, and hence the acid, can be prepared by heating yellow phosphorus with sodium hydroxide solution. The free acid and its salts are powerful reducing agents.

Phosphorous acid Basic Attributes

Molecular Weight：

Exact Mass：

82.00

EC Number：

233-663-1

HScode：

2811199090

Characteristics

PSA：

60.7

XLogP3：

-1.5

Appearance：

Phosphorous acid appears as a white or yellow crystalline solid (melting point 70.1 deg C) or a solution of the solid. Density 1.651 g /cm3 . Contact may severely irritate skin, eyes, and mucous membranes. Toxic by ingestion, inhalation and skin absorption.

Safety Information

Transport codes：

UN 2834

hazard class code：

22-35

safety instructions：

1/2-26-36/37/39-45

Marks：

Xn,C

Precautionary statement(s)：

P260, P264, P270, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P405, P501

Hazard Statements：

H302

Phosphorous acid Use and Manufacturing

Mainly used for urination disorders caused by prostatic hypertrophy. Is a highly selective α1A receptor blocker

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CAS No.: 10294-56-1

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Industrial Grade Phosphorous Acid (H3PO3) CAS 13598-36-2 Reducing Agent & Chemical Intermediate

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Content: 98%

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CAS No.: 10294-56-1

Grade: Industrial Grade

Content: 99%

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